Stitch-down shoe-lasting machine



F. P. ST1-:11. sum1 Down snor: msnm ucnnm Jan. 3, 1928.

2 Sheets-Sheet 1 Filed nec. 171.k 1924 INVENToR.

SVM M BY @um YFW- Jan. 3, 1928. v 1,654,617

--F. P. sTl-:IL

s'rnca Down Asnor: msnm uAcuIuE Filed 13%?. 1994 l 2 sheets-sneer 2 Ef g Inu It Oi :LEP

` 'l INVENToR.

BY P.

gua-@THM ATTORNEYJ Patented Jan. 3, 1928.

FRANK P.'STEIL,V' 0F CUDAHY, WISCONSIN.

STITCH-IJOWN SHOE-LAS'IING MACHINE. i

Applcationlled December 17, 1924'. Serial No. 756,5716.

The invention rela-tes to stitch-down `shoe lasting machines. 1

The invention relates to that type of Vvlasting machine for stitch-down shoes wherein the out-turned edge of the upper. is glued tov the adjacent out-sole bythepcooperativeV action of two' relativelymovable dies,and.has for its object to improve upon existinginachines of: this `type by such an arrangement, operation and formationof the dies ,as will produceV a more (efhcient, lasting action on the shoe with" an increase in' production vover known machines. l p

rlhe invention further consists in the sevparticularly defined by claims at Vthegconclusion hereof. Y

v In the drawings: Fig. 1 is a side elevation view, partly in section, of a machine embodying the invention; 1 Y

Fig. 2 is a front elevation view thereof;

' Fig. 3 is a detail-sectional view taken on the line 3 3 of Fig. 2;

Fig. 4 is a detail view showingthe action of the dies upon a shoe. Y

In the drawings the numeral 5 designates the head ofthe machine,v which is usually mounted upon a suitable pedestal 6,'and 7 and 8 the cooperative dies.

The lower die 7 is preferably that is, it is `irmly as by mounting its shank portion 9 within an arm 10 on said lhead and clamping it thereto by a setL screw 11. '1

The upper die or shoe-forming Atool 8 is preferably the movable die,`having its head, preferably of metal part 8 a fixed die,

having a hinge connection with the member 12 through a pivot pin '38, and limited in its swinging movement by cooperative stops 39, 40 and '41, 42 on the forward and rear parts of vthe hinge and normally held by a spring 43 with the stops 39 and 40 in contact The member 12 is vertically slidably mounted in a bearing 13 secured to an arm 14 onY the head 5, and is prevented from rotating by a square pin 15 mounted-'in said shank and working in a Vslot 16 in said hearing 13.

vThe lower die or anvil 7 has an inclined surface 17 upon which the outer sole is laid or held during the lasting operation, by the operator, who stands in front of the machine, and the die '8 has an upwardly curved end portion 18, a relatively'flat pressing portion eral features hereinafter'set forth andinoresecured to the head 5,y

-the upper,-

fibre composition, secured to af of the die kextends 19. substantially parallel to thesurface 17`of the anvil and just back of said end port-ion,

and ay recessed or relief portion 20 receding from said end vwith the resultthat as the die 8'moves up and downthe loutturned edge `jor flange v21 of the upper 22 is firmly pressed against the adjacent outer vsole 28, the contacting surfaces of theriangey of the upper and thesole edge, or either of these parts,

Ahaving beenl coated withY cement priorlto the lasting operation, so Vthat Vthese parts 'will stick together, and att'he same itime,because of the shape of the die 8 and its pivotal mounting, the portion of the upper adjacent the angle between the sole and the last 24 is also shaped to this angle adjacent thebeveled edge of the inner sole 25 simultaneously with theY drawing over of the upper upon the last 24, and the upper will then be in the desired shaped and stretched'position on the lastand connected to the outer edge of fthe sole without requiring the use of staples or other fastening means whereby the subsequent operations of attaching the welty or other parts may be readily performed. Thus,

4the die 8 has the threefold function of pulling the upper over the last, forming the angle of the upper close to the inner sole and pressing and ironing down the iange upon the ladjacent sole, all of which -is accomplished by the-vertical movement of said die, it being1 noted that the pressing action toy eoV

of the die. upon the flange forms the angle of l and pressure upon the lower side thereof draws or stretches the upper yover the continued downward y i `the last. It will be further noted that. because ofthe pivotal l mounting used as the die 8 engages the upper it is swung inwardly toward the angle of the last against the pressure of the spring 43 until thestops 41 and 42 contact', and that this has a pressing operation on the outturned edge of the upper aswell as a'pulling operation on the upper. Furthermore, asthe die 8 works from a position alcove the shoe, it is an easy matter for the' operator to ob-V serve the work. y

The die 8 is preferably-power driven and in such a way as to deliver a succession of hammerlike blows upon the upper. yTo accomplish this arod 26 secured to the shank through a guide 27 on the head 5, and a spring 28 surrounding said rod is interposed between said dievand said guide and 'isadapted to move the die 8 downwarddown QiA

ly through energy stored up in it,'and movenient ot' the die 8 beingI limited by a stop collar having threaded engagement with the upper threaded end ot' the rodv 2G .and secured in position by a locknut'30. lVashers ill, ot leather or other suitable material, are securedbeneath the collar) to dcaden the noise and to relieve the parts ot undue shocking strains. Forstoring up energy in the spring, a rotary sh a'lt 32, driven in any suitable manner from any suitable, source of power, isfjournalled in a bearing in the head 5 and carries a cam 33 which cooperates with a flangev 34: on theshanlr oi' the die 8, said flange? having a recess 35 therein andsaid havin'gfanf abrupt drop 36 in itsrproiile from its highest point Si to its low point 37 tov p ermi't'quick descent after the high point 37 oi the vcamV passes over said collar, with l theresult that the cam gradually raises the 1 die against the pressure ot' the spring 2S and Vby the spring l-l. Anv

then, when the required amount oi" energy has been stored up in the spring, releases it and causes the die to deliver a hammerlile blow upon the upper, said blows beingdelivered in relatively quick succession through the continued rotation of the shaft 32.A

As a means tor connecting the shaft 32 with a source o'fpower, I show a pulley 38, for connection by` belt Vwith any power source, loosely mounted on the shaft 32 and having a clutch surface 39 normally held out VAof engagement with a clutch disk 40, fast on shaft 32, by a spring 41. The pulley 38 is movedintojclutched engagement with the disk 4l() by a vertically slidable treadle-operatedwedge l-Q, a blocl engageable with a wedge surface 43 on a collar tl adjacent the hub of the pulley 38. The wedge 42 is corr nected to the treadle, not shown, by the rod l45, and when the treadle is depressed by the operator the clutch is engaged and on the release of the treadle the usual spring, not

shown, .moves the wedge 42 upwardly to permit release or the pulley 38 trom the disk 4() l' I, other suitable clutch mechanism may be used. y

I find that with the above construction the operator can clearly see what he is doing and that the movement ot the die or tool 8 with its hammering action causes the upper to be quickly and eliiciently shaped to thcV last and affixed to the outer edge of the sole.

I desire it to be understood 'that this in` press the flange ot' they upper intojcon'tact with thel outer edge ofthe adjacent sole.

`3. In as titclrdown shoe lasting machine, the combination of ay supporting anvil, a movablepres'sing and forming tool. av spring for movings'aid tooll to its" work, and a power driven cam associated with said spring andv tool forlintermittently storing up energy in said spring and intermittently releasingr it to cause the tool to deliver a succession-.oty free hammer blows upon the work whereby to shape the upper to the last and' press the liange of the upper into contact with the outer edge of the adjacent sole.

4. In a. stitch-down shoe lasting machine,v the combination of a supporting anvil, a reciprocating tool-carryingmember, a shoe! forming toolghinged to said member for limited swinging movement forwardly and backwardly, spring meansy for normally holding said tool in its rearward position, and means including a spring for reciprocating saidcarrying member whereby to cause said tool to engage the flange of the upper and swing forwardly toward the angle of the. upper as-Vit presses said flange into` contact with the adjacent sole, vforms the angle' and pulls and shapes theupper over the last.

5. In a stitch-down shoe lasting machine, the combination of a. supportinganvil, areciprocating tool-carrying member. a shoeforming tool yhinged to said member for limited 'swinging movement toward and away from the work.` springmeans for normally holding said tool in its rearward po sition, and. means for so reciprocating said carrying members as to produce a succession of free hammer blows of the tool upon the work during which saidtool engages the ilangc ofthe upper and swings forwardly toward th-e angle ot theupper as it presses said Harige into contact withthe adjacent sole, forms the angle and pulls and 'shapes' the upper over the last. n

6. Ina stitch-,down shoe lasting machine,k the ycombination of asupporting anvil, a reciprocating tool-carrying member,- ai pressing and forming tool hinged to said meinberpfor limited swinging movement toward and 'away from the work,l spring means lttor normally holding said tool in' its rearward po;

Work, and a poWer-driven cam associated with said last-named spring and carryingmember for intermittently storing up yand releasing energy in said springancl thus produce a succession ol' free hammer blows of the tool upon the Work duringwhich said tool engages the flange of the upper and swings forwardly toward the angle of the upper as it presses said lange into' Contact with the adjacent soleyforms the angle and 10 pulls and shapes the upper over the last.

In testimony whereof, I affix my signature.

FRANK P; STEIL. y 

